Effect of Different Coagents on Physico-Chemical Properties of Electron Beam Cured NBR/HDPE Composites Reinforced With HAF Carbon Black

The effect of different coagents on the physico-chemical properties of NBR/HDPE composites reinforced with 40 phr (part per hundred part of rubber by weight) HAF carbon black and cured with accelerated electrons was investigated. The coagents N,N'-methylene bisacrylamide (MBAAm) and trimethylol propane trimethacrylate (TMPTMA) were used at a constant content of 10 phr. The physico-chemical properties such as tensile strength, tensile modulus at 50% elongation (M-50), elongation at break (E-b), hardness, soluble fraction (SF), swelling number (SN), electrical conductivity, and thermal properties were studied. The results obtained showed that the TMPTMA as a coagent is more effective than MDA in enhancing the mechanical and physical properties of NBR/HDPE vulcanized composites. POLYM. COMPOS., 29:1321-1327, 2008. (C) 2008 Society of Plastics Engineers